net: prestera: validate firmware header length
Summary
| CVE | CVE-2026-74693 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-08-22 16:16:43 UTC |
| Updated | 2026-10-14 13:10:00 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: net: prestera: validate firmware header length prestera_fw_hdr_parse() reads the firmware header before checking that the firmware image contains that header. Reject images shorter than struct prestera_fw_header before decoding the magic and version fields. |
Risk And Classification
EPSS: 0.001770000 probability, percentile 0.071960000 (date 2026-08-24)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 38a3afbf9fd8a2e8c47fa3ca47b425a8a9623240 git | Not specified |
| CNA | Linux | Linux | affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 0fbcceb9d19f2d1dcdf099aee590f2517cb718bb git | Not specified |
| CNA | Linux | Linux | affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 e0f382e8084117f0b11ffb070fe1079e38c0d7f9 git | Not specified |
| CNA | Linux | Linux | affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 6fad06bb793d7089ae05b9fcf46e11be2dfe4850 git | Not specified |
| CNA | Linux | Linux | affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 470ac9cce7308e60cf2dceb448749cdd006e73de git | Not specified |
| CNA | Linux | Linux | affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 363e048a9d0a6c245cbc348c8a220170afed046a git | Not specified |
| CNA | Linux | Linux | affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 7fa8a12296d8d5aa4b1c3904f0b354d81124cf29 git | Not specified |
| CNA | Linux | Linux | affected 4c2703dfd7fabb0824b3bc345f9fa47e33248c14 8ae344eb540af3f457179b52bc6061416752485c git | Not specified |
| CNA | Linux | Linux | affected 5.10 | Not specified |
| CNA | Linux | Linux | unaffected 5.10 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.265 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.216 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.183 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.152 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.104 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.45 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1.9 7.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.2 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/38a3afbf9fd8a2e8c47fa3ca47b425a8a9623240 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/470ac9cce7308e60cf2dceb448749cdd006e73de | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/6fad06bb793d7089ae05b9fcf46e11be2dfe4850 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/0fbcceb9d19f2d1dcdf099aee590f2517cb718bb | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/8ae344eb540af3f457179b52bc6061416752485c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/363e048a9d0a6c245cbc348c8a220170afed046a | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/7fa8a12296d8d5aa4b1c3904f0b354d81124cf29 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/e0f382e8084117f0b11ffb070fe1079e38c0d7f9 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.